djvu | 3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089

General

Target

JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe
Size

793KB
MD5

82d3995fca748b97d11e657d85e8c526
SHA1

4b5b563cdbe1777218560be351569dfc19456e42
SHA256

3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089
SHA512

3a757c21f70952ad42fc3ee33100a6948cc221e033cc92b6bdc1afd412322521bc678b4c53cc85d3e537aca732e76563e1744609d93963ee6a14e7fac194d223
SSDEEP

24576:u2k/D8qnX3CZEfj5zewjYOWTGZBEyamWj:u2kdXlfj55jrwGZBELmW

Score

10^/10

djvu discovery persistence ransomware

Malware Config

Extracted

Family

djvu

C2

http://fuyt.org/test1/get.php

Attributes

extension
.udla
offline_id
qwVQoIsE2xLety0oNWloOilSDuIBXJGK86LM3ot1
payload_url
http://zerit.top/dl/build2.exe

http://fuyt.org/files/1/build3.exe
ransomnote
ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-fnn5kv33Vv Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0435JIjdm

rsa_pubkey.plain

Signatures

Detected Djvu ransomware 18 IoCs

resource	yara_rule
behavioral2/memory/3836-2-0x0000000002350000-0x000000000246B000-memory.dmp	family_djvu
behavioral2/memory/4716-3-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4716-4-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4716-5-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4716-6-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/4716-17-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2604-21-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2604-22-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2604-24-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2604-29-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2604-30-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2604-31-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2604-39-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2604-42-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2604-44-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2604-45-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2604-46-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu
behavioral2/memory/2604-47-0x0000000000400000-0x0000000000537000-memory.dmp	family_djvu

Djvu Ransomware
Ransomware which is a variant of the STOP family.
ransomware djvu
Djvu family
djvu

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe

Modifies file permissions 1 TTPs 1 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3868	icacls.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\00987282-bdb9-4e67-9965-3eef4c6e650f\\JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe\" --AutoStart"	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe

Looks up external IP address via web service 3 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
13	api.2ip.ua
14	api.2ip.ua
19	api.2ip.ua

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3836 set thread context of 4716	3836	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	83
PID 2712 set thread context of 2604	2712	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	89

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	icacls.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
4716	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe
4716	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe
2604	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe
2604	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe

Suspicious use of WriteProcessMemory 26 IoCs

description	pid	Process	procid_target
PID 3836 wrote to memory of 4716	3836	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	83
PID 3836 wrote to memory of 4716	3836	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	83
PID 3836 wrote to memory of 4716	3836	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	83
PID 3836 wrote to memory of 4716	3836	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	83
PID 3836 wrote to memory of 4716	3836	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	83
PID 3836 wrote to memory of 4716	3836	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	83
PID 3836 wrote to memory of 4716	3836	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	83
PID 3836 wrote to memory of 4716	3836	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	83
PID 3836 wrote to memory of 4716	3836	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	83
PID 3836 wrote to memory of 4716	3836	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	83
PID 4716 wrote to memory of 3868	4716	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	85
PID 4716 wrote to memory of 3868	4716	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	85
PID 4716 wrote to memory of 3868	4716	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	85
PID 4716 wrote to memory of 2712	4716	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	86
PID 4716 wrote to memory of 2712	4716	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	86
PID 4716 wrote to memory of 2712	4716	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	86
PID 2712 wrote to memory of 2604	2712	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	89
PID 2712 wrote to memory of 2604	2712	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	89
PID 2712 wrote to memory of 2604	2712	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	89
PID 2712 wrote to memory of 2604	2712	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	89
PID 2712 wrote to memory of 2604	2712	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	89
PID 2712 wrote to memory of 2604	2712	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	89
PID 2712 wrote to memory of 2604	2712	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	89
PID 2712 wrote to memory of 2604	2712	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	89
PID 2712 wrote to memory of 2604	2712	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	89
PID 2712 wrote to memory of 2604	2712	JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3836
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4716
- - C:\Windows\SysWOW64\icacls.exe
    icacls "C:\Users\Admin\AppData\Local\00987282-bdb9-4e67-9965-3eef4c6e650f" /deny *S-1-1-0:(OI)(CI)(DE,DC)
    3⤵
    - Modifies file permissions
    - System Location Discovery: System Language Discovery
    PID:3868
- - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe" --Admin IsNotAutoStart IsNotTask
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2712
  - - C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe" --Admin IsNotAutoStart IsNotTask
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      PID:2604

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

File and Directory Permissions Modification

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12

Filesize
1KB

MD5
67e486b2f148a3fca863728242b6273e

SHA1
452a84c183d7ea5b7c015b597e94af8eef66d44a

SHA256
facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb

SHA512
d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8

Filesize
436B

MD5
971c514f84bba0785f80aa1c23edfd79

SHA1
732acea710a87530c6b08ecdf32a110d254a54c8

SHA256
f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895

SHA512
43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

Filesize
174B

MD5
946b5385169d106b32a5777ec7df5694

SHA1
2ae2d727f1a95ec6dcec71522b380cddb00abcc4

SHA256
7d0706df40cc4715b11e4f65e960db397367ad1c666044740d348bced7b589d8

SHA512
2b438d6827d83a7aae625746601bf385009b8756d22dad3c32427b688fb4176a5d2cd81e8b77bc2876851fd441896191aafe9fd8509401139fa04e47203c27ff

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8

Filesize
170B

MD5
8d72cdea116c32a89ed7a175ffa98c8c

SHA1
452988905a3c2ef2f18ed3e3ae3e9855b58d9d18

SHA256
7d0f1f769c489066949647b60924ca4f22c06c714854689bf061572f5d05beb4

SHA512
d84614af8927738d861c28619c7e2231928f4f84cec56d36bd93e4054c0c97f84bbdbabe4afdd106a24ed00e3874b522867af11ae25e7c39d8f18dd8c241dcb8

Download Submit
C:\Users\Admin\AppData\Local\00987282-bdb9-4e67-9965-3eef4c6e650f\JaffaCakes118_3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089.exe

Filesize
793KB

MD5
82d3995fca748b97d11e657d85e8c526

SHA1
4b5b563cdbe1777218560be351569dfc19456e42

SHA256
3d9bc88df68d691b2e1f79c582dee96bc73eaa373ce16d84aeb06d2024671089

SHA512
3a757c21f70952ad42fc3ee33100a6948cc221e033cc92b6bdc1afd412322521bc678b4c53cc85d3e537aca732e76563e1744609d93963ee6a14e7fac194d223

Download Submit
memory/2604-24-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2604-29-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2604-47-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2604-46-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2604-21-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2604-22-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2604-45-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2604-44-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2604-42-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2604-39-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2604-31-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2604-30-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/2712-23-0x0000000000400000-0x000000000050B000-memory.dmp

Filesize
1.0MB

Download
memory/2712-19-0x0000000000400000-0x000000000050B000-memory.dmp

Filesize
1.0MB

Download
memory/3836-2-0x0000000002350000-0x000000000246B000-memory.dmp

Filesize
1.1MB

Download
memory/3836-1-0x0000000002170000-0x000000000220C000-memory.dmp

Filesize
624KB

Download
memory/4716-3-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4716-4-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4716-5-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4716-6-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download
memory/4716-17-0x0000000000400000-0x0000000000537000-memory.dmp

Filesize
1.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads